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Proceedings Paper

High-efficiency non-blocking phosphorescent organic light emitting diode with ultrathin emission layer
Author(s): Jacky Qiu; Michael G. Helander; Zhibin Wang; Yi-Lu Chang; ZhengHong Lu
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Paper Abstract

Non-blocking Phosphorescent Organic Light Emitting Diode (NB-PHOLED) is a highly simplified device structure that has achieved record high device performance on chlorinated ITO[1], flexible substrates[2], also with Pt based phosphorescent dopants[3] and NB-PHOLED has significantly reduced efficiency roll-off[4]. The principle novel features of NB-PHOLED is the absence of blocking layer in the OLED stack, as well as the absence of organic hole injection layer, this allows for reduction of carrier accumulation in between organic layers and result in higher efficiencies.

Paper Details

Date Published: 13 September 2012
PDF: 5 pages
Proc. SPIE 8476, Organic Light Emitting Materials and Devices XVI, 84761S (13 September 2012); doi: 10.1117/12.929976
Show Author Affiliations
Jacky Qiu, Univ. of Toronto (Canada)
Michael G. Helander, Univ. of Toronto (Canada)
Zhibin Wang, Univ. of Toronto (Canada)
Yi-Lu Chang, Univ. of Toronto (Canada)
ZhengHong Lu, Univ. of Toronto (Canada)

Published in SPIE Proceedings Vol. 8476:
Organic Light Emitting Materials and Devices XVI
Franky So; Chihaya Adachi, Editor(s)

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